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Finding the Fourth Proportional to 5,576,603.60, 8,364,905.40 and 1,790,469.20

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Solution

The fourth proportional to 5,576,603.60, 8,364,905.40 and 1,790,469.20 is: 2,685,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,576,603.60 : 8,364,905.40 = 1,790,469.20 : x
  2. Step 2: Convert to fraction form
    5,576,603.60/8,364,905.40 = 1,790,469.20/x
  3. Step 3: Cross multiply
    5,576,603.60x = 8,364,905.40 × 1,790,469.20
  4. Step 4: Simplify right side
    5,576,603.60x = 14,977,105,479,613.68
  5. Step 5: Solve for x
    x = 14,977,105,479,613.68/5,576,603.60
  6. Step 6: Final answer
    x = 2,685,703.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.